Annovi Reverberi RSV 3400 Petunjuk Pengoperasian dan Manual Suku Cadang - Halaman 10

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Annovi Reverberi RSV 3400 Petunjuk Pengoperasian dan Manual Suku Cadang

Operating Instructions and Parts Manual

Plunger Pumps

Troubleshooting

Symptom

Oil leak between

crankcase and pump-

ing section

Frequent or prema-

ture failure of the

packing

Pump runs but pro-

duces no flow

Pump fails to prime

Pump looses prime,

chattering noise,

pressure fluctuates

Low pressure at

nozzle

Pressure gauge fluc-

tuates

Low pressure

Possible Cause(s)

Worn rod oil seals

1 Cracked, damaged or worn

plunger

2 Overpressure to inlet

manifold

3 Material in the fluid being

pumped

4 Excessive pressure and/or

temperature of fluid being

pumped

5 Running pump dry

Pump is not primed

Air is trapped inside pump

1 Air leak in suction hose or

inlet

2 Clogged suction strainer

1 Unloader valve is by-pass-

ing

2 Incorrect or worn nozzle

3 Worn packing or valves

1 Valves worn or blocked by

foreign bodies

2 Packing worn

1 Worn nozzle

2 Belt slippage

RSV Series Pumps

Corrective Action

Replace crankcase piston rod

seals

1 Replace plungers

2 Reduce inlet pressure

3 Install proper filtration on pump

inlet plumbing

4 Check pressures and fluid inlet

temperature; be sure they are

within specified range

5 Do not run pump without water

Flood suction then restart pump

Disconnect discharge hose from

pump. Flood suction hose,

restart pump and run pump until

all air has been evacuated

1 Remove suction line and inspect

it for a loose liner or debris

lodged in hose. Avoid all unnec-

essary bends. Do not kink hose

2 Clean strainer

1 Make sure unloader is adjusted

property and by-pass seat is not

leaking

2 Make sure nozzle is matched

to the flow and pressure of the

pump. If the nozzle is worn,

replace

3 Replace packing or valves

1 Clean or replace valves

2 Replace packing

1 Replace with nozzle of proper

size

2 Tighten or replace with correct

belt

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